Also tried numerous things like booting with 1 RAM, no GPU, no PSU and a different CPU and still no change.
Hi
I would dearly love to see you boot with no PSU............
Seriously though, if the motherboard is actually faulty then it would be covered by the warranty which is three years from the date of manufacture. The thing is though that I wouldn't think it is faulty but probably caused by some other component or software. Have you tried clearing the CMOS and then loading
Optimised BIOS Defaults for a start. If you require some pointers follow these instructions:
Remove the power cable from the mains supply and then press the power switch on the case for a few seconds just to drain any residual energy in the PSU capacitors.
Once done remove the motherboard battery for one hour before replacing it.
Next plug back into the mains supply and boot.
You will now need to enter the BIOS by pressing DEL and load
Optimised BIOS Defaults.
Make any other changes to the BIOS settings to suit your self like disabling the floppy drive, disabling the full screen logo and making the HDD the primary boot device and then press F10 to save and exit.
Post back afterwards with the result.